SECTION XL 



235 



His above method wants corredion Iii 

 his third family, or Margaritifer^ : iu 

 his feventh family, his placing the Noah's 

 Arks or boats, as Mufcles : in his ninth fa- 

 mily of Tellens, which is not truly defined ; 

 and, laftly, in his making two families of 

 the Chama and Chama Pholas, which in 

 reality have no pofitive chara6ter to diftin- 

 guifh them. 



Dr. Grew, in his Mufeum Regalis 

 Societatis, p. 153, gives, as his feventh 

 fcheme of Shells that of the Bivalves and 

 Multivalves ; but it is fo confufed and 

 puzzHng as to be ufelefs : however, his 

 two chief divifions of Bivalves are into 

 inarticulate and articulate hinges. 



Breynius's fcheme of Bivalves is very 

 jejune and ufelefs. 



Argenville is the next fyftematift : he 

 divides all his Bivalves into fix families, 

 viz. I, The Oyfters. 2. Cham;:e. 3. Mufcles, 



Tellens, 



